## Delta Math Unit Circle Exercises.jpg - Section 2: Work Time

•
Delta Math Unit Circle Exercises.jpg

# Using Right Triangles to Make the Unit Circle

Unit 7: Trigonometry: The Unit Circle
Lesson 3 of 9

## Big Idea: By looking for connections between right triangle trig and unit circle trig, we can discover some common sense embedded in both.

Print Lesson
Standards:
Subject(s):
Math, unit circle, right triangle, making sense, reference angle, radius, sine, cosine, period
75 minutes

### James Dunseith

##### Similar Lessons

###### What do Triangles have to do with Circles?
Algebra II » Trigonometric Functions
Big Idea: How is the unit circle related to "triangle measurement"? A story of two equivalent definitions.
Favorites(10)
Resources(17)
Fort Collins, CO
Environment: Suburban

###### Riding a Ferris Wheel - Day 2 of 2
12th Grade Math » Trigonometric Functions
Big Idea: Make the transition from the Ferris wheel problem to the unit circle.
Favorites(5)
Resources(10)
Troy, MI
Environment: Suburban

12th Grade Math » Rotations and Cyclical Functions
Big Idea: Students use cylinders and string to investigate radian angle measurements and then use their findings to develop a method to convert from radian to degrees.
Favorites(8)
Resources(19)
Phoenix, AZ
Environment: Urban